Question

Why was Ptolemy's Earth-centered system of epicycles taught throughout Europe for over a thousand years?

Answer 1

The main reason why Ptolemy's Earth-centered system of epicycles taught throughout Europe for over a thousand years was because this fit well with the religious narrative of the day, since people could not fathom that the world was not in fact at the center of the universe, since this would imply than human being's were not the focus of God's creation.